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PIC12F1822-I/MF 数据表(PDF) 52 Page - Microchip Technology |
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PIC12F1822-I/MF 数据表(HTML) 52 Page - Microchip Technology |
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52 / 398 page  PIC12F/LF1822/16F/LF1823 DS41413A-page 52 Preliminary 2010 Microchip Technology Inc. REGISTER 4-2: CONFIGURATION WORD 2 R/P-1/1 R/P-1/1 U-1 R/P-1/1 R/P-1/1 R/P-1/1 U-1 LVP DEBUG — BORV STVREN PLLEN — bit 13 bit 7 U-1 U-1 R-1 U-1 U-1 R/P-1/1 R/P-1/1 — — Reserved — —WRT1 WRT0 bit 6 bit 0 Legend: R = Readable bit W = Writable bit U = Unimplemented bit, read as ‘0’ u = Bit is unchanged x = Bit is unknown -n/n = Value at POR and BOR/Value at all other Resets ‘1’ = Bit is set ‘0’ = Bit is cleared P = Programmable bit bit 13 LVP: Low-Voltage Programming Enable bit(1) 1 = Low-voltage programming enabled 0 = High-voltage on MCLR must be used for programming bit 12 DEBUG: In-Circuit Debugger Mode bit 1 = In-Circuit Debugger disabled, ICSPCLK and ICSPDAT are general purpose I/O pins 0 = In-Circuit Debugger enabled, ICSPCLK and ICSPDAT are dedicated to the debugger bit 11 Unimplemented: Read as ‘1’ bit 10 BORV: Brown-out Reset Voltage Selection bit 1 = Brown-out Reset voltage set to 1.9V (typical) 0 = Brown-out Reset voltage set to 2.5V (typical) bit 9 STVREN: Stack Overflow/Underflow Reset Enable bit 1 = Stack Overflow or Underflow will cause a Reset 0 = Stack Overflow or Underflow will not cause a Reset bit 8 PLLEN: PLL Enable bit 1 = 4xPLL enabled 0 = 4xPLL disabled bit 7-5 Unimplemented: Read as ‘1’ bit 4 Reserved: This location should be programmed to a ‘1’. bit 3-2 Unimplemented: Read as ‘1’ bit 1-0 WRT<1:0>: Flash Memory Self-Write Protection bits 11 = Write protection off 10 = 000h to 1FFh write-protected, 200h to 7FFh may be modified by EECON control 01 = 000h to 3FFh write-protected, 400h to 7FFh may be modified by EECON control 00 = 000h to 7FFh write-protected, no addresses may be modified by EECON control Note 1: The LVP bit cannot be programmed to ‘0’ when Programming mode is entered via LVP. |
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